Math387.Erfc Method

function Erfc(X: Double): Double;

Complement to the error function Erf.

#NameTypeDescription
1XDoublescalar

Returns: Double - the complement to the error function Erf.

Remarks:

The Erfc function is defined by the following equation:

erfc(x)=2πxexp(t2)dt=1erf(x)\text{erfc}\left(x\right)=\frac{2}{\sqrt{\pi}} \int _x ^\infty \exp (-t^2) dt = 1-\text{erf}(x)
See Also: Math387.Erf, Math387.ErfInv